The Seiko 7N42-7A80 is a watch model based on the 7N42 movement.
Parts List
| 290W38ZN01 | crystal - crystal |
| 45M76NA1 | crown - crown (3h) |
| 45M76NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| 86179411 | bezel gasket - plastic gasket for bezel |
| 4058JG | band - band |
| 4058LG | band - band |
| 4058MG-LKG | band - link |
| 4058LG-LKG | band - link |
| 4058MG | band |
| 4058MG-BK1S | clasp - clasp |
| 4058MG-PB1 | clasp - parts for buckle/clasp |
| 4058LG-BK1S | clasp - buckle |
| 4058LG-PB1 | clasp - parts for buckle |
| 2AB125L0BKE | others - minute hand |
| 2AB125L0BLG | others - minute hand |
| 3AX120F0ALB | others - second hand |
| 1AB080L2BKE | others - hour hand |
| 1AB080L2BLG | others - hour hand |
| A120BS | others - push pin (for lb) |
| 0878580 | others - date dial |
| 0878589 | others - date dial |
| 82830140 | others - case ring |
| 7N427A8061Z | others - case |
| 82286749 | others - bezel |
| 7N427A80 | others - case back |
| 7N427A8098Z | others - case |
| 82286741 | others - bezel |
| 7N423 | others - machine code |
| 7N427B5WXS14 | others - dial |
| 7N427B6WXB14 | others - dial |
| 7N427B6WXS13 | others - dial |
| 0351892 | others - winding stem |
| 0Z0060B01 | others - crown and stem gasket |
| 3AX120F0ALG | others - second hand |
| 2AB125L0BKA | others - minute hand |
| 1AB080L2BKA | others - hour hand |